The Douglas A-4 Skyhawk is a single seat carrier-capable attack aircraft developed for the United States Navy and United States Marine Corps. The delta winged, single-engine Skyhawk was designed and produced by Douglas Aircraft Company, and later by McDonnell Douglas. It was originally designated A-4D under the U.S. Navy's pre-1962 designation system.

Sky-hawk's played key roles in the Vietnam War, the Yom Kippur War, and the Falklands War. Sixty years after the aircraft's first flight in 1954, some of the 2,960 produced (through February 1979) remain in service with the Argentine Air Force and the Brazilian Naval Aviation.